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| author | Andrew den Exter <andrew.den-exter@nokia.com> | 2011-12-01 14:01:13 +1000 |
|---|---|---|
| committer | Qt by Nokia <qt-info@nokia.com> | 2011-12-23 07:23:39 +0100 |
| commit | 347f84e5aca9423536cb0cd7a2eafaf836a72212 (patch) | |
| tree | cdb68529b37190be7f477d7775f8011d39080b36 /examples/declarative | |
| parent | 932a195dbaae92ce87b98beca29a25c9b8d6cf5b (diff) | |
Minimize the number of objects created per item in VisualDataModel.
Derive from QDeclarativeContext and reference count the context object
instead of parenting it to the context. Combined with a weak
persistent v8 handle the allows the context object to be returned by
javascript accessors instead of creating a new instance for every use.
In addition to the efficiency advantages of creating fewer objects,
routing all data access through a single object means that object can
also persist data instead of just acting as a proxy.
Change-Id: I107dc8c901f16f2a4b420ff1cbffa7a6be27de89
Reviewed-by: Martin Jones <martin.jones@nokia.com>
Diffstat (limited to 'examples/declarative')
| -rw-r--r-- | examples/declarative/modelviews/visualdatamodel/dragselection.qml | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/examples/declarative/modelviews/visualdatamodel/dragselection.qml b/examples/declarative/modelviews/visualdatamodel/dragselection.qml index afbea1ff94..edce2d5ac2 100644 --- a/examples/declarative/modelviews/visualdatamodel/dragselection.qml +++ b/examples/declarative/modelviews/visualdatamodel/dragselection.qml @@ -83,7 +83,7 @@ Item { } DropArea { anchors.fill: parent - onEntered: visualModel.items.move(selectedItems, 0, packageRoot.VisualDataModel.itemsIndex, selectedItems.count) + onEntered: selectedItems.move(0, visualModel.items.get(packageRoot.VisualDataModel.itemsIndex), selectedItems.count) } } Item { |